I have been loading 165 grain plated round nose in the 9MM SMGs for some time now.
YES, they are VERY shiny. eXtreme makes a pretty projectile

Since I was keeping the projectile sub sonic for the suppressed guns, the only way to increase energy was with heavier projectiles.

I originally used to shoot the IMI 158s (we had access to tens of thousands of these), then I started loading my own plated 158TCs once the IMIs dried up
This was a very good projectile for he 9MM.

But, Then I found the 165s and now I am happy

I use 5.6 grains of AA#7. That gets me almost 900 out of the 5" handguns and stays just sub sonic in the 8.3" MP5s and 10" suppressed UZI
It is very quite in all the guns